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Range hood

A technology of range hood and fan frame, applied in the direction of removing oil fume, mechanical equipment, machine/engine, etc., can solve the problems of motor obstructing the air inlet, noise, abnormal sound, and vibration that cannot be improved, so as to avoid obstruction of air intake, Improved left-right balance and strong capture ability

Active Publication Date: 2020-06-23
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of fan system puts the motor in the middle, and the two impellers are placed parallel to the two sides, which solves the problem of the motor blocking the air inlet, but it does not improve the noise, abnormal sound and vibration.

Method used

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Embodiment Construction

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0018] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element must have a particular orientation, be constructed, and operate in a particular orientatio...

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PUM

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Abstract

The invention discloses a range hood. The range hood comprises a fan frame and a fan system arranged in the fan frame, wherein the fan system comprises a first volute and a second volute which are arranged in parallel; a first air inlet is formed in the first volute; a second air inlet is formed in the second volute; the first air inlet faces the left side; and the second air inlet faces the rightside. The range hood is characterized in that the first air inlet is gradually inclined leftwards from front to back, and the second air inlet is gradually inclined rightwards from front to back, sothat an included angle is formed between the first air inlet and the second air inlet. Compared with the prior art, the range hood has the advantages that oil smoke on the front side is pulled to therear side, so that flow fields on the front side and the rear side are uniformly distributed, and the flow speed of the oil smoke accumulated on the front side is lower than that of the oil smoke accumulated on the front side which is placed in parallel (so that noise and abnormal sound can be reduced); and the rear side is narrow, so that the capturing capacity of the rear side of each air inletis higher, the longitudinal balance is improved, the stress is more uniform, and vibration is reduced.

Description

technical field [0001] The invention relates to a cooking fume purifying device, in particular to a range hood. Background technique [0002] Range hoods have become one of the indispensable kitchen appliances in modern families. The range hood uses the principle of fluid dynamics to work, sucks and exhausts the range hood through a centrifugal fan installed inside the range hood, and uses a filter to filter some grease particles. The centrifugal fan includes a volute, an impeller installed in the volute and a motor that drives the impeller to rotate. When the impeller rotates, a negative pressure suction is generated in the center of the fan, and the oil fume under the range hood is sucked into the fan, and after being accelerated by the fan, it is collected by the volute and guided out of the room. [0003] In the range hood in the form of an upper fan, there are mainly two types of air intake of the fan system currently used, one-side air intake and two-side air intake....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20F04D25/16F04D29/42F04D29/66
CPCF04D25/166F04D29/4226F04D29/661F04D29/662F04D29/665F24C15/20
Inventor 王登强田涛茅忠群诸永定
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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